conf: non-functional fixup

conf: non-functional fixup

Surfaced while building lxc-2.0.8 on e2k architecture with lcc,
looks like its -Wall is more pedantic than gcc's:

lcc: "conf.c", line 1514: error: unrecognized character escape sequence
          [-Werror]
        DEBUG("created directory for console and tty devices at \%s\"", path);
                                                                ^
 in expansion of macro "DEBUG" at line 1514

Another byte is a leading whitespace fix while at that.

Signed-off-by: Michael Shigorin <mike@altlinux.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>